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ET-2712 RTD Calibrator
ET-1712 RTD Calibrator
Users Manual
Hangzhou Zhongchuang Electron Co., Ltd.

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Summary of Contents for East Tester ET-2712 RTD

  • Page 1 ET-2712 RTD Calibrator ET-1712 RTD Calibrator Users Manual Hangzhou Zhongchuang Electron Co., Ltd.
  • Page 2: Table Of Contents

    Contents 1 Basic Introduction......................1 1.1 Function....................... 1 1.2 Summary of Source and Measure Functions............1 1.3 Terminal Description....................2 1.4 Key Description....................3 1.5 Display Screen..................... 4 2 Basic Operation.......................5 2.1 Measure and Source..................... 5 2.2 Shutdown Mode....................7 2.3 Backlight Brightness Adjustment.................8 3 Function Usage.......................
  • Page 3 9.2 Optional Accessories..................19 10 Warning........................20...
  • Page 4: Basic Introduction

    1 Basic Introduction 1.1 Function It allows you to measure voltage, resistance, and RTD.  Outputs resistance, simulation of RTD.  Manual stepping, automatic stepping, 0~100% phase step and ramp output.  Support for PC communication  1.2 Summary of Source and Measure Functions Function Measure...
  • Page 5: Terminal Description

    1.3 Terminal Description Figure 1.3-1 Name Description Communication and charging Connect power adaptor to charge batteries or connect the ① connector calibrator to the computer. Terminal used during 3-wire and 4-wire electric and 3W and 4W terminal ② thermal resistance measurement. COM Public terminal All measurement and output public terminal.
  • Page 6: Key Description

    1.4 Key Description Figure 1.4-1 Description Turns the power on or off ① Selects the measurement mode ② Selects output and analog transmitter mode. ③ Enables backlight switch display during start, enters backlight ④ brightness control mode. Selects thermal resistance mode ⑤...
  • Page 7: Display Screen

    Sets and saves calibrator parameters setting ⑥ Recovers factory default setting ⑦ Sets manual output ⑧ Cycles through: ⑨ slow repeating 0%-100%-0% ramp Fast repeating 0 % - 100 % - 0 % ramp Repeating 0 % - 100 % - 0 % ramp in 25 % steps Set output by 0% of span, Press and hold to store the source value ⑩...
  • Page 8: Basic Operation

    2 Basic Operation 2.1 Measure and Source This section acquaints you with some basic operations of ETX-2012/ ETX-1812. Proceed as follows: The connection of the calibrator as shown in Figure 2.1-1. Figure 2.1-1 Press for more than 2 seconds to turn on the calibrator. The calibrator checks itself, including check on internal circuit and LCD, during which, LCD displays all contents for 1s, the interface is shown in Figure 2.1-2: Figure 2.1-2...
  • Page 9 Then the type of product and automatic shutdown time will be displayed for 2 seconds as shown in Figure 2.1-3. Figure 2.1-3 Press to switch to the thermal resistance output mode. screen will display as shown in Figure 2.1-4. Figure 2.1-4 Press to increase or decrease 1 of the horizontal line position (the number will be based on automatic stepping without change of horizontal line...
  • Page 10: Shutdown Mode

    Figure 2.1-5 2.2 Shutdown Mode The calibrator comes with the shutdown mode enabled for a time duration set to 30 minutes (displayed for about 2 seconds when the calibrator isinitially turned on). When the shutdown mode is enabled, the calibrator will automatically shutdown after the time duration has elapsed from the time the last key was pressed.
  • Page 11: Backlight Brightness Adjustment

    2.3 Backlight Brightness Adjustment To adjust the brightness of backlight, proceed as follows: Please press simultaneously until the buzzer work, then the screen will display as shown in Figure 2.3-1: Figure 2.3-1 Press to adjust the brightness of backlight. Press to save brightness level, will appear and then the calibrator will enter into the work mode(Without pressing key for 5 seconds, the calibrator...
  • Page 12: Function Usage

    3 Function Usage 3.1 DC V Measurement The default function after turn on is DC V measurement. If it is required, press to re-select the voltage measurement (the display unit is V).Please connect the lines after all functions are selected. The connection mode and interface are shown in Figure 3.1-1: Figure 3.1-1 3.2 Resistance Measurement...
  • Page 13 Figure 3.2-1 The Over Range under Open Circuit Resistance measurement supports the connection type of two-wire system, three-wire system and four-wire system. The calibrator can be switched to three-wire system or four-wire system according to actual connecting type. The respective connecting types are listed in Figure 3.2-2: Press to select the connection mode forcibly.
  • Page 14: Resistance Output

    3.3 Resistance Output Press to select the resistance output function, the connection mode is same to that of voltage measurement. Figure 3.3-1 It indicates the undersize of exciting current, meanwhile, the main value flashes Continuously press to switch the resistance output range, 3200Ω range is shown as below.
  • Page 15: Using Resistance Temperature Detector (Rtd)

    Using Resistance Temperature Detector (RTD) The calibrator accepts Pt100, Pt1000, Cu50 and Cu100, etc. RTD measurements of two-wire system, three-wire system or four-wire system are available to calibrator, among which the three-wire system is particularly applicable to the industrial worksite. A four-wire configuration provides the highest in accuracy and the two-wire system the lowest.
  • Page 16: Application Of Resistance Temperature Detector (Rtd)

    Application Resistance Temperature Detector (RTD) Connect the calibrator and the instrument to be tested according to the Figure 5-1. Simulation of RTD should be based on the following steps: If necessary, press to select mode. Press to select RTD graduation. Press to select temperature.
  • Page 17: Advanced Application

    6 Advanced Application 6.1 Setting 0 % and 100 % output parameters As for stepping operation and percentage display, 0% and 100% should be set before using. Some level values have been set when it is out of the factory and set values are shown as below: Output function 0% value...
  • Page 18: Auto Ramping The Output

    6.2 Auto Ramping the Output Auto ramping gives you the ability to continuously apply a varying stimulus from the calibrator to a transmitter, while your hands remain free to test the response of the transmitter. When you press , the calibrator produces a continuously repeating 0 % - 100 % - 0 % ramp in your choice of three ramp waveforms: The calibrator will produce a continuous, repeated slope output ranging from 0% - 100% -0%when...
  • Page 19: Power

    7 Power The calibrator needs 6 disposable LR03 model (size 7) alkaline batteries or 6 R03 model (size 7) nickel-metal hydride batteries (or nickel-cadmium batteries). The longest service life of alkaline batteries can reach 50 hours. A 12V/1A power adaptor is used for charging and providing working power for the calibrator.
  • Page 20: Specifications

    8 Specifications Specifications are based on a one year calibration cycle and apply from +18℃ to +28 ℃ unless stated otherwise. All specifications assume a 10 minute warmup period. 8.1 DC Voltage Measurement Accuracy (% of reading + Count) Maximum Range Resolution measurement range...
  • Page 21: Resistance Output

    8.3 Resistance Output Accuracy (Ω) Maximum External exciting Range Resolution output range current ETX-1812 ETX-2012 0.15 400Ω 0~440Ω 0.01Ω 0.4mA~4.0mA 0.25 0.50 3200Ω 400~3600Ω 0.1Ω 0.1mA~0.5mA -10 ℃~ 18 ℃, +28 ℃~ 55 ℃ temperature coefficient,±0.005%FS/ ℃ . 8.4 RTD Accuracy (℃) ETX-1812 ETX-2012...
  • Page 22: Product Accessories

    9 Product Accessories 9.1 Standard accessories A set of ETX-2012/ETX-1812 calibrator also includes the following items: hard spot test leads (one set)  alligator clip (one set)  one 12V/1A power adaptor  ETX-2012/ETX-1812 user manual  Alligator Hard spot test leads Figure 9.1-1 9.2 Optional Accessories 6 R03-model rechargeable batteries...
  • Page 23 10 Warning To avoid possible electric shock or personal injury: Test a given voltage to confirm its normal operation before using. Mutual  authentication of the upper and lower display data, for instance. Please follow all the safety operation procedures. ...
  • Page 24 Hangzhou Zhongchuang Electron Co.,Ltd. Phone: 0086-571-56770221 Fax: 0086-571-56861355 Website: Http://www.east-tester.com E-mail: sales@east-tester.com Zip Code: 310015 Address: No.3, Kangle Road, Gongshu District, Hangzhou,Zhejiang,China...

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Et-1712 rtd

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